Answer:
1.33 cm
Explanation:
L = 32 m, T 1 = 0 degree C , T2 = 32 degree C
Thermal expansion coefficient of steel, α = 13 x 106-6 per degree C
Let ΔL be the increase in length.
ΔL = L x α x ΔT
ΔL = 32 x 13 x 10^-6 (32 - 0)
ΔL = 0.0133 m = 1.33 cm
Answer:
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The speed of electrons striking the anode is increased, the density of the emitted x-rays increases.
Answer: Option 2
<u>Explanation:</u>
Whenever electrons are made to be incident on any anode, they will be interacting with the surface atoms of anode. So these interaction will lead to excitation of electrons of the surface atoms of the anode.
Thus when the excited electron will come back to ground state, it will emit x-rays. Thus, on increasing the speed of the striking electrons, it will gain the property of interacting with larger amount of surface atoms leading to increase in the emission of X-rays .
Thus, this increase in the emission of X-rays will lead to increase in the density of X-ray. So the speed of electrons striking the anode is increased, the density of the emitted x-rays increases.
Insomnia is a condition in which the person with it has difficulty sleeping
The way that doctors can best detect medical problems is :
by injecting a radioactive isotope that travels to the target's tissue and measures the amount of radioactive decay.
if the amount is less or mote than normal, he can conclude that the cause of the symptoms is related to that tissue
